Defense & Aerospace
Engineered for tactical advantage
LiGas Battery Cells
LiGas battery cells deliver critical reliability across the harshest environments, with industry-leading cold-weather operation down to -60 °C and proven high-temperature storage at +60 °C and 100% state-of-charge.
LiGas is a patented liquefied gas electrolyte that replaces conventional liquid electrolyte, significantly improving performance, safety and enabling extreme temperature range.
Developed and tested with support from US Army DEVCOM C5ISR, South 8’s LiGas battery cells are currently being evaluated in prototype battery packs for soldier portable applications.
High-Performance Cells for Mission-Critical Systems
Designed to Withstand. Built to Deliver.
Soldier Power and Communication Devices
Reliable power for radios, sensors, and tactical electronics in extreme heat and cold. LiGas cells support advanced chemistries with enhanced safety and stability for the modern warfighter.
Satellites, UAVs and Drones
Extended endurance for ISR drones and high-altitude defense assets operating in extreme cold. LiGas cells support long-duration missions without bulky heaters or complex thermal management.
Hybrid & Electric Vehicles and Ground Robots
LiGas cells offer enhanced thermal stability for advanced EV platforms and unmanned ground systems. Built to handle aggressive duty cycles and extreme environments—without sacrificing safety.
Soldier Power and Communication Devices
Reliable power for radios, sensors, and tactical electronics in extreme heat and cold. LiGas cells support advanced chemistries with enhanced safety and stability for the modern warfighter.
Satellites, UAVs and Drones
Reliable power for ISR drones and high-altitude assets operating in extreme cold. LiGas cells enable long-duration missions without bulky heaters or thermal management systems.
Hybrid & Electric Vehicles and Ground Robots
LiGas cells offer enhanced thermal stability for advanced EV platforms and unmanned ground systems. Built to handle aggressive duty cycles and extreme environments—without sacrificing safety.
performance
Unwavering Extreme Temperature Performance
LiGas delivers mission-critical reliability across the harshest environments, with industry-leading cold-weather operation down to -60 °C and proven high-temperature storage at +60 °C and 100% state-of-charge.
Whether in freezing cold or intense heat, LiGas ensures safe, high-performance energy when and where it’s needed most. It enables dependable charge and discharge, with high-rate capability, long cycle life, and strong resistance to calendric aging—even with advanced materials like silicon anodes.
Trusted for defense applications, LiGas enables operation and longer runtimes in the most demanding conditions.
LiGas - Temperature Performance
Liquid electrolyte weakens at 0 ˚C and freezes at -20 ˚C
Low Temperature Recharge
C/3-rate Charge and Discharge
High Temperature Storage
LiGas shows excellent storage at +60 ˚C, 100% SOC
2.7 Ah 18650, Graphite / NMC 811
2.7 Ah 18650, Graphite / NMC 811
3.2 Ah 18650, Graphite+Si / NMC811
Key benefits
The Unique Advantages of LiGas Cells
Unprecedented Temperature Range
LiGas cells operate from -60 to +60 ˚C, charge and discharge
Reduced Fire Risk
Minimal propagation risk via thermal fuse, rapidly evacuating the electrolyte from the cell
Fast Charge
High conductivity and low impedance enables fast charging and extended cycle life
Reliable Domestic Supply Chain
LiGas leverages an established U.S. gas manufacturing supply chain